The cutting data choice for machining rolls with CBN Inserts
Category：News
PublishedDate：2017-09-11
The cutting data choice for machining rolls with CBN Inserts
For the cutting depth, we usually choose the cutting depth of machining rolls, mainly depend on the hardness of the workpiece, and we also need to consider the requirements of the roughness, then make sure the cutting depth.
After confirm the cutting depth, we also need to choose the large feed rate depending on the cutter strength, cutter durability and the hardness requirements in the roughing process.
For the feed rate in the finishing process, we can choose depending on the surface roughness of the workpiece Because the feed rate will affect the surface roughness, so choose the reasonable cutting depth, feed rate and the cutting depth, it has important effect for ensure the product quality and improve the production efficiency.
(1) When machining the rolls body, we can choose low cutting speed and small cutting depth, and add the feed rate to improve the durability.
Machining Site: Rolls cylinder
Workpiece Materials: Alloy Cast Iron 9CrV
Hardness: HRC55~62
Machining Process: Roughing and Semi-finishing
Insert: Solid CBN Insert
Cutting Data: ap=6mm, Vc=80m/min, Fr=1mm/r
Halnn already researched special cbn inserts grade for different materials rolls: HSS Rolls, Cast iron rolls, Tungsten Carbide Rolls, Steel Iron Rolls and other materials. For the following will share the rolls grade details as follows:
|
Machining Materials |
Hardness |
Cutting Speed Vc m/min) |
Machining Type |
Cutting Depth ap mm) |
Feed Rate Fr (mm/r) |
CBN Insert Grade |
|
Cast Iron Rolls |
HRC35~68 |
35~120 |
Roughing |
1~10 |
0.15~0.7 |
BN-K1 |
|
60~180 |
Finishing |
≤1 |
0.05~0.35 |
|
Cast Steel Rolls |
≥HRC45 |
50~150 |
Roughing |
1~10 |
0.15~0.7 |
BN-S20 |
|
60~250 |
Finishing |
≤1 |
0.05~0.35 |
Halnn also have other solid cbn inserts for machining other materials, please kindly check it as follows:
|
ISO Code |
Insert Grade |
Suited Materials |
Advantages |
Application Industry |
|
K/S |
BN-K1 |
Chilled Cast Iron |
Good Collapse Resistance |
Cast Iron Rolls |
|
Wear Resistant Cast Iron |
Excellent Fracture Resistance |
Pump |
|
High Manganese Steel |
|
H |
BN-S20 |
Hardened Steel |
Excellent Wear Resistance |
Hardened Steel Rolls |
|
Rolled Hardened Steel |
Good Thermal Shock Resistance |
Ball Screw |
|
Wear Resistant and Heat-resistant Steel |
Wind Power Bearings |
|
Wear Resistant Castings |
|
K |
BN-S30 |
Cast Iiron |
Good Impact Resistance |
Automotive Parts,Brake Discs/Drum |
|
Hard Cutting Material |
Excellent Wear Resistance |
Pump Parts |
|
K |
BN-S300 |
Cast Iron Iron Series |
Good Keeness |
Cast Iron Engine Block |
|
Sintered Alloy |
Gearbox Housing |
|
Engine Cylinder liner |
|
H |
BN-S200 |
Hardened Steel |
Excellent Wear Resistance |
Slewing Bearings |
|
Superalloy |
Forged Steel Chilled Rolls |
|
K |
BNK30 |
Cast Iron |
Excellent Wear Resistance |
Automotive Parts,Brake Discs/Drum |
Any problems on machining high hardness materials, please feel free to contact with us info@halnntools.com, skype:info@halnntools.com, Whatsapp:+8615617635382